Question

Два пловца спрыгнули одновременно с лодки и поплыли по реке в противоположных направлениях первый со скоростью 90 метров в минуту а второй со скоростью 40 метров в минуту сколько метров проплывет второй пловец Когда первый проплыл 270 метров

Answer 1

1)270:90=3(мин)
2)3*40=120(мин)
Ответ:120 метров проплыл 2

Answer 2

Problem Analysis

Two swimmers jump simultaneously from a boat and swim in opposite directions. The first swimmer swims at a speed of 90 meters per minute, while the second swimmer swims at a speed of 40 meters per minute. We need to determine how many meters the second swimmer will have swum when the first swimmer has already swum 270 meters.

Solution

To find out how many meters the second swimmer will have swum when the first swimmer has already swum 270 meters, we can use the concept of relative speed. The relative speed between the two swimmers is the sum of their individual speeds. In this case, the relative speed is 90 + 40 = 130 meters per minute.

We can calculate the time it takes for the first swimmer to swim 270 meters using the formula:

Time = Distance / Speed

Substituting the values, we get:

Time = 270 / 90 = 3 minutes

Now, we can calculate the distance the second swimmer will have swum in 3 minutes using the formula:

Distance = Speed * Time

Substituting the values, we get:

Distance = 40 * 3 = 120 meters

Therefore, the second swimmer will have swum 120 meters when the first swimmer has already swum 270 meters.

Answer

The second swimmer will have swum 120 meters when the first swimmer has already swum 270 meters.